-10% is the change from 60 to 54
Calculation steps:
[( 54 - 60 ) ÷ 60] x 100 = -10%
Formula
Percentage change = [(54 - 60) / 60] x 100
Subtract the new number by the original number
54 - 60 = -6
-6 ÷ 60 = -0.1
-0.1 x 100 = -10%
Example